function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
			func();
		}
	}
}
sfHover = function() {
	if (window.attachEvent){
		var sfEls = document.getElementById("primeNav").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
}
safariMenuBlock = function () {
	//safari not working properly with dhtml nav
	if (/Safari/.test(navigator.userAgent)){
		var itm = document.getElementById('primeNav')
		itm.id = 'primeNavMac';
	}
}
addLoadEvent(sfHover);
addLoadEvent(safariMenuBlock);